(1) 发现，觉察(discover or recognize the presence， existence， or fact of) [T+n]：～early cancer/minute amount of radiation/a symptom of a disease 发现早期癌症/微量的放射/病症;～sb's pulse 觉出某人有脉搏;～some odour in the room/a smell of gas in the air/sth strange in sb's silence/a note of sarcasm in sb's voice/a French accent in sb's speech 发觉房间里有难闻的气味/空气中有煤气味/某人的沉默有点异样/某人的话音中有讽刺的口吻/某人的讲话中有法语口音;Do I～a certain amount of doubt in your voice? 我觉得你的言语中有点怀疑的口吻，是吗?～small quantities of poison in the dead man's stomach/no decay in sb's teeth/a fault in a car 发现死人的胃里有少量的毒物/某人的牙齿没有腐蚀/车子有毛病;～sb cheating/stealing sth 发觉某人欺诈/行窃;〖同〗discover， uncover， notice， observe， perceive， see;

(2) 侦查(破)(investigate and solve(crime， etc)) [T+n]：～a spy 侦破一间谍案;～fraud 侦查欺诈;

→de′tection n 觉察，查明;侦查(破);de′tective n 侦探;de′tector n 探测器